[填空题]
One means of enriching uraniu w e7i0n:sghgq ax7,c*mxgxdiww xy )(h/;4mc2 is by diffusion of the gas $\text{UF}_6$. Calculate the ratio of the speeds of molecules of this gas containing $_{92}^{235}\text{U}$ and $_{92}^{238}\text{U}$ on which this process depends. :1